Spyware Blaster

http://www.javacoolsoftware.com/sbdownload.html

Freeware

Freeware - Free software, often written by enthusiasts and distributed by users' groups, or via electronic mail, local bulletin boards, Usenet, or other electronic media.
Open source - Term appeared in March 1998 following the Mozilla release to describe software distributed in source under licenses guaranteeing anybody rights to freely use, modify, and redistribute, the code.
Shareware is NOT free. There is one form of shareware that is free for non-commercial use. It meets our definition of Freeware for individuals and is included in our collection.

Refert to:
http://www.freewarehome.com/